1 Corinthians 7:4-8

The wife does not have authority over her own body, but the husband does; and likewise the husband also does not have authority over his own body, but the wife does.

Stop depriving one another, except by agreement for a time so that you may devote yourselves to prayer, and come together again so that Satan will not tempt you because of your lack of self-control.

But this I say by way of concession, not of command.

Yet I wish that all men were even as I myself am. However, each has his own gift from God, one in this way, and another in that.

But I say to the unmarried and to widows that it is good for them if they remain even as I.